Zoology - Human Reproduction Question with Solution | TestHub

Testosterone is the primary male sex steroid. It is an androgenic steroid synthesized by interstitial Leydig cells in the testes. It is required for spermatogenesis, functional differentiation of the excurrent ducts of the testes and the development of male secondary sexual characteristics. Androgen-binding protein synthesized by Sertoli cells assures that a high concentration of testosterone is present in the adluminal compartment of the seminiferous epithelium.